摘要
以盆栽实验为基础,研究了植物(黑麦草,Lolium perenne L)-微生物(不动杆菌,Acinetobacter sp.)组合体系对石油污染土壤的修复效果。实验结果表明:在总石油烃含量为4 420.18 mg/kg、脱氢酶活性为230.52μg/(g·d)、苯酚毒性当量浓度(TEQ_(phenol))为1 633.21 mg/L的初始条件下,强化组总石油烃降解率最高为53.08%,是对照组的1.60倍;土壤的脱氢酶活性达到637.73μg/(g·d),是对照组的10.64倍;石油污染土壤的生物毒性大幅降低,TEQ_(phenol最终降低至171.08 mg/L。说明该组合体系对石油污染土壤具有很好的修复作用,且微生物对土壤中有毒物质的降解起主要作用。
The bioremediation effects of petroleum-contaminated soil were studied using a plant（ryegrass,Lolium perenne L）-microbe（acinetobacter,Acinetobacter sp.） combination system with pot culture. The experimental results showed that under the initial conditions of total petroleum hydrocarbon content 4 420.18 mg/kg,dehydrogenase activity 230.52 μg/（g·d） and toxic equivalent quangtity（ converted to toxic equivalent quangtity of phenol,TEQphenol） 1 633.21 mg/L,the highest degradation rate of total petroleum hydrocarbon of the enhancement group was 53.08% which was 1.60 times higher than that of the blank group,the dehydrogenase activity of the soil reached 637.73 μg/（g·d） which was 10.64 times higher than that of the blank group,and the biotoxicity of the contaminated soil was significantly reduced with the lowest TEQphenol of 171.08 mg/L. These results indicated that this combination system had good effects on bioremediation of petroleum-contaminated soil,and microbes played a major role in degradation of toxic substances in soil.
出处
《化工环保》
CAS
CSCD
北大核心
2018年第1期101-105,共5页
Environmental Protection of Chemical Industry
基金
国家科技部科技惠民计划项目(2012GS610203)
关键词
石油污染土壤
生物修复
生物毒性
黑麦草
不动杆菌
petroleum-contamination soil
bioremediation
biotoxicity
ryegrass
acinetobacter
